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Filtered by Co. Dublin 9 to 16 class teachers Lost a class teacher Clear all

48 schools in Co. Dublin · 2025/26

pupils
13,205
junior infants
1,435
in 2 all-Irish schools
568 4.3%
class teachers · 0 gained one · 48 lost one since 2024/25
607 −64 since 2015/16
together since 2015/16

The 47 schools with figures for both years had 16,385 pupils in 2015/16 and have 12,872 now. Schools that have closed, and newer schools, aren’t counted.

−21.4%
Over 10 years

2 grew · 7 steady · 38 fell · 1 newer

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Number of pupils
Change in pupils over 10 years
Average class size
Class teachers
Class teachers since 2024/25
DEIS and islands
  1. St Brigids Convent Dublin 11Girls
    406 −12.5%
  2. S N Naomh Lorcan StillorganBoys
    390 −12.2%
  3. St Helens Senior N S Portmarnock
    381 +42.7%
  4. S N Eoin Baisde Girls Senior Dublin 3Girls
    380 −8.4%
  5. St Raphaelas N S BlackrockGirls
    375 −20.4%
  6. Scoil Mhuire Boys Dublin 14Boys
    367 −19.9%
  7. Presentation Primary School Dublin 6WGirls
    367 −37.7%
  8. S N Peadar agus Pol N Balbriggan
    357 −24.5%
  9. St Canices B N S Dublin 11BoysDEIS
    355 −17.8%
  10. Mary, Help of Christians G.N.S. Dublin 7Girls
    352 −17.8%
  11. Scoil Mhuire MXD Howth
    349 −3.9%
  12. St Georges N S BalbrigganChurch of Ireland
    339 −16.3%
  13. St Attractas Junior N S Dublin 16
    337 −2.6%
  14. Shellybanks Educate Together National School Dublin 4Multi-denominational
    333 +274.2%
  15. S N Cholmille B SwordsBoys
    320 −22.0%
  16. Thornleigh Educate Together National School SwordsMulti-denominationalDEIS
    313 −3.7%
  17. Scoil Carmel Dublin 24
    313 −30.1%
  18. Gaelscoil Bhaile Brigin Baile BrigínGaelscoilInter-denominational
    306 −34.2%
  19. Mhuire Iosef Junior Dublin 13
    302 −30.1%
  20. St Josephs NS Dublin 17DEIS
    294 −14.5%
  21. Scoil Assaim Boys Seniors Dublin 5
    293 +13.1%
  22. S N Eoin Bosco Buach Dublin 7Boys
    290 −21.0%
  23. St Brigids Boys N S Dublin 5Boys
    287 −23.7%
  24. St Kevins Boys Dublin 24Boys
    275 −16.4%
  25. Scoil Nais Caitriona Rush
    274 −3.9%
Showing 25 of 48 Show 23 more

Distances are straight lines, not travel routes. Pupil numbers and class sizes: Department of Education, 2025/26. Change is over 10 years, since 2015/16. Average class size counts mainstream classes only, and there's one class teacher for each mainstream class. Totals cover every school in the results, not just those shown.